Specifications:Material: PC+ABSHousing Color: Black & RedLight Color: RedInput Voltage: 12V DCSIze: As the pictures shownDistance Between Two Screws: 5.1cmScrew Diameter: 0.6cmBulb Quantity: 2Quantity: Pack of 2Features:-Super bright light ang ultra light weighted-Very popular used in the trailer industry-Low consumption and saving power-Durable; waterproof、environmental protectionConnection:Black Wire: Negative ElectrodeGreen & Red Wire: Positive Electrode (Red wire is brighter)Fitment:Universal fit for cars、 boat、 trucks、 etc.Notes:-Please check the size measurement chart carefully before making a payment.-Please allow 0.1-0.5cm difference due to manual measurement.-The color of the actual items may slightly different from the listing images due to different computer screen、 thanks for your understanding.-Instruction is not included.Package Includes:2 x Trailer Tail Lights